Question

Part 4: Concentration Determination of a KCl Solution

a) mass of evaporating dish 42.82 g

b) volume of KCl (aq) in mL 5mL

c) volume of KCl (aq) in L

d) mass of evaporating dish + KCl (aq) 47.98 g

e) mass of KCl (aq) (d-a)

f) density of KCl (aq) (e / b)

g) mass of evaporating dish + KCl (s) 42.95 g

h) mass of KCl (s) (g-a)

i) moles of KCl (s)

j) mass percent of KCl (aq) ((h / e) x 100)

k) molarity of KCl (aq) (i / c)

l) mass of water evaporated in g (d-g)

m) mass of water evaporated in kg

n) molality of KCl (aq) (i / m)

Answer 1